摘要
四川是农业大省 ,农耕地在农业上具有重要的地位和作用。农耕地中旱耕地比重大 ,旱耕地特征明显 ,生产、生态问题突出 ,土壤养分贫乏 ,水土流失和与之相关的旱、洪灾害严重 ,导致生产能力和生产水平低下。因此 ,四川农业可持续发展中 ,旱耕地 ,特别是旱坡耕地 (6～2 5°)的综合治理和持续利用 。
Sichuan province is one of the main agriculture provinces.Dry cropland accounts for a large proportion of cultivated land. There exist serious production and ecology problems.Serious drought and floodwater calamity cause serious water and soil loss and poor soil fertility which result in low productivity. So the comprehensive harness and sustainable utilization of dry cropland ,especially dry slope cropland (6°～25°),have important strategic significance and status.
出处
《西南农业学报》
CSCD
2001年第B12期96-102,共7页
Southwest China Journal of Agricultural Sciences
关键词
水土流失
旱耕地
综合治理
退耕还林
可持续利用
water and soil loss
dry cropland
comprehensive harness
return cultivated land to forest land
sustainable utilization
